Preliminary field screening for hazardous substances and petroleum products

NEPA Studies (24 CFR Part 50 through 58)

D3G's experience with 24 CFR Part 50-58 and the National Environmental Policy Act (NEPA) on thousands of federally supported projects guarantees solutions to even the most complex problems. Our knowledge of Tax Credit Assistance Program (TCAP) NEPA compliance reports and HUD Form 4128 Environmental Assessment and Compliance Findings reports make our staff experts on the following:

Historical Preservation - SHPO Correspondence

Floodplain Management - Executive Order 11988

Wetlands Protection - Executive Order 11990

US Fish and Wildlife Service Correspondence

Noise Assessments in accordance with HUD Noise Guidebook

Acceptable Separation Distance Evaluations

Costal Zone Management Correspondence

Additional Nuisances and Hazards (fall zones, pipelines, etc.)

Phase II Assessments

Phase II investigations confirm the presence or absence of hazardous materials, the extent of contamination, the liability associated with contamination, and provide a basis for remediation design. Common Phase II activities include:

Soil and Groundwater Investigations

Vapor Intrusion Assessments

Petroleum Storage Tank Testing

Lead-Based Paint Studies

Asbestos-Containing Material Inspections

Moisture and Mold Evaluations

Vapor Encroachment

As a primary service provider to HUD mortgage insurance programs, D3G is an expert in performing Tier I, II and III Vapor Encroachment Screenings as defined by ASTM E 2600-10 (Standard Guide for Vapor Encroachment Screening). Since HUD’s adoption of the ASTM standard, we have performed in excess of 1,500 vapor encroachment screenings. As more lending institutions adopt the new standard, align yourself with the expert: D3G.